Phys. Rev. Lett. 98, 181801 (2007) [4 pages]New Physics Contributions to the Lifetime Difference in D0-D̅ 0 MixingReceived 17 October 2006; published 30 April 2007 We present the first general analysis of New Physics contributions to the D0-D̅ 0 lifetime difference (equivalently ΔΓD). We argue that New Physics (NP) contributions to |ΔC|=1 processes can dominate the lifetime difference in the flavor SU(3) limit. We provide several specific examples of models that produce sizable effects in ΔΓD for realistic values of light quark masses, even if such NP contributions are undetectable in the current round of D0 decay experiments. This makes ΔΓD a viable observable for studies of indirect effects of New Physics. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.98.181801
DOI:
10.1103/PhysRevLett.98.181801
PACS:
12.60.−i, 13.25.Ft, 14.40.Lb, 14.65.Dw
See AlsoComment: Chuan-Hung Chen, Chao-Qiang Geng, and Soo-Hyeon Nam, Comment on “New Physics Contributions to the Lifetime Difference in D0-D̅ 0 Mixing”, Phys. Rev. Lett. 99, 019101 (2007). |
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